Drain for boat coverings



FIG. 1 is a top perspective view of a drain for boat coverings showing my new design, the broken lnes are for illustrative purpose only and form no part of the claimed design;

FIG. 2 is a right side view thereof, the left side being the same;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a rear view thereof. 

The ornamental design for a drain for boat coverings, as shown and described. 